tag | R Documentation |
Unlike attr<-
, this method (essentially) stores the
attribute in a reference to the object, not a copy. As such it can
be used within function call (handlers) to assign values outside
the scope of the function call.
tag(obj, key)
## Default S3 method:
tag(obj, key)
tag(obj, key) <- value
tag(obj, key) <- value
obj |
object |
key |
character. Values are stored by key. If missing, all keys are returned. |
value |
to assign to key |
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